// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_BROWSER_MEDIA_ANDROID_MEDIA_THROTTLER_H_
#define CONTENT_BROWSER_MEDIA_ANDROID_MEDIA_THROTTLER_H_

#include <jni.h>

#include "base/android/scoped_java_ref.h"
#include "base/macros.h"
#include "base/memory/singleton.h"

namespace content {

class MediaThrottler {
public:
    // Called to get the singleton MediaThrottler instance.
    static MediaThrottler* GetInstance();

    virtual ~MediaThrottler();

    // Called to request the permission to decode media data. Returns true if
    // permitted, or false otherwise.
    bool RequestDecoderResources();

    // Called when a decode request finishes.
    void OnDecodeRequestFinished();

    // Resets the throttler to a fresh state.
    void Reset();

private:
    friend struct base::DefaultSingletonTraits<MediaThrottler>;
    MediaThrottler();

    base::android::ScopedJavaGlobalRef<jobject> j_media_throttler_;
    DISALLOW_COPY_AND_ASSIGN(MediaThrottler);
};

} // namespace content

#endif // CONTENT_BROWSER_MEDIA_ANDROID_MEDIA_THROTTLER_H_
